Green averaged 16.9 yards per catch for the Steelers before missing the last five games after taking a hit in Cincinnati in Week 15. Concussion protocol kept Green out of Sunday's 36-17 AFC Championship Game loss to the New England Patriots.
"Frustrating season, but everybody has one. I hope it's the only one I have," Green said. "I'm going to go train as soon as I get home, and hopefully next season works out a lot better."
The Steelers signed Green, a former San Diego Charger, to a four-year, $20 million contract in March. Green called his first season in Pittsburgh "rough, real rough" after missing the first nine weeks because of a surgically repaired ankle, then leaving the late-season lineup as he was building chemistry with quarterback Ben Roethlisberger.
Green came to Pittsburgh with reported concussion history during his four-year stint in San Diego, but Green told reporters in March those issues were misdiagnosed. NFL Network reported in August that Green was out of the training camp lineup due to recurring headaches; Green and Steelers coach Mike Tomlin said the ankle injury was the sole reason Green missed time.
Green, who produced 18 catches for 304 yards and 1 touchdown in 6 games, said he felt well enough to play in Sunday, aside from the protocol.
"I was able to play, show a little bit of what I can do," said Green about his year.